Lock.



No. 726,254. PATENTED APR 28,1903;

' H. G. GARLETON.

LOCK. APPLIGATION FILED FEB. 20, 1902. RENEWED HA3. 4, 1903. 10 MODEL. 1I 3 BHSBTB-SHEET 1;

m: Nonms Prrsas 0a., qno roumo" msumumu, u c.

Hm-726,264. PATENTEDAPR. 28, 1903. H. G. CARLETDN.

I LOOK.

APPLICATION FILED FEB. 20, 1902. BEIIEWED HA3. 4. 1903.

WITNESSES: I I v EN TIOR fifi? I I W 1;

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No. 726,254. PATENTED APR. 28, 1903.

' G. GARLBTON.

LOCK. APPLIGAT-IOK FILED FEB. 20, I902. RENEWED MAB. 4. 1903. N0 MODEL.v I 8 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

HENRY GUY oARLEToN, OF NEW YORK, N. Y.

LOCK.

SPECIFICATION forming part of Letters Patent N 0. 726,254, dated April28, 1903.

Application filed February 20,1902. Renewed March 4, 1903. Serial No.146,233. (No model.)

To aZZ whom it may concern:

Be it known that I, HENRY GUY CARLETON, a citizen of the United States,and a resident of New York city, county and State of New York, have madecertain new and useful Improvements in Locks, of which the following isa specification.

My invention relates to locks or devices used to securely fasten'doorsin such a manner as to permit them to be opened by anthorizedindividuals only.

I provide a lock having the usual movable engaging part, a lockingmember therefor, a controlling device for said locking member, and twoor more separate and independent means for operating said controllingdevice, such as a key and a combination consisting of notched wheels andlevers orthe equivalent thereof. With this I combine an electrical alarmor indicator to give notice or made or is making the attempt to enterby:

v the use of the alternative meansthatis, the

combination unlocking apparatus.

My improvements include the usual arrangement of lock, key, andkey-cylinder; but I add to this a second unlocking device or means foroperating the controlling device, which specifically consists of acombination of two, three, or more disks and pivoted levers so arrangedthat the levers can only be moved when the notches in the several disksare at a predetermined point. These disks are rotatable from. theoutside of the door by.

means of one or more spindlesthat is, one

. for each disk. The disks are arranged on the well-knowncombination-lock principle that is, in one species a thin scalloped diskis adjustably attached to each notched disk and a detaining-spring isprovided for each disk, which engages with the depressions in theperiphery, thus enabling the operator to determine the position of eachdisk of the combination with respect to an initial or vCam 15 isretracted by spring '24.

, starting point,this latter point being a smooth or uninterruptedportion of the periphery. Of course a'series of visible numbers maybesubstituted for the notches and detainingspring, or both devices may beused to enable the operator to determine by both the sense of touch andof sight the position of the cooperating parts. lVith this combinationunlocking device I employ an electric circuit containing an audiblealarm located within the protected premises. A circuit-closer connectedto said circuit closes the circuit and sounds an alarm when anunsuccessful attempt is made to operate the combinationunlocking'device, but is silent when the combination unlocking device isproperly set to permit the unlocking of the door.

The accompanying drawings illustrate my invention;

Figure 1 is a central section of the lock on the line C D, Fig. 2. Fig.2 is a transverse central section on the line A B, Fig. 1. Fig. 3 showsthe exterior of the lock with the keycylinder and the spindles foroperating the combination unlocking device. Figs. 4, 5, 6, and 7 aredetails of the specific structure of the combination unlocking device.

In Fig. 1 the lock is provided with a metal frame or case 3, aface-plate 4, and astrikerplate 5. There is a movable engaging part,including the bolt 7, with the beveled striking-terminal 8, acontrolling-spring 12, and a bearing 11, through which the bolt 7slides. The beveled bolt-head 8 passes through the aperture 9 inface-plate 4 and has a back limit-stop2. The interior end of bolt 7 isprovided with a head or flange 14, leaving a free section 13 of bolt 7between its bearing 11 and flange 14. There are two operating knobs and51. Knob 51 is on the inside of the door and controls cam 16, whichengages Withflange 14 upon the end of bolt 7. Knob 50 controls cam 15,which engages with flange 14 on the opposite" side of section 13 of bolt7. The cam 16 is retracted by spring 21. It results from thisconstruction that knob 50 operates .cam 15 to withdraw the movableengaging part from one side of the door, while knob 51 operates cam 16to withdraw the movable engaging part from the opposite or inner sideEach knob 50 and 51 has a.

of the door.

squared spindle, which enters a squared opening in its hub 23, and eachhub is integral with a cam or 16. To withdraw the movable engaging partby means of a key and keycylinder, there is a lever 17, pivoted at 19.Its lower end engages the flange 14 on the bolt. Its upper end is inposition to be engaged by the cam 38 of the key-cylinder 39. Thiskey-cylinder 39 is held in position by a traveling nut 44, having ahooked terminal 43, engaging a notch 41 in the key-cylinder 39. Theposition of the nut 44 is controlled by the screw 45, journaled at 46and 47 in the lock-case 3. By turning the key in the lockcylinder thecam 38 will engage the upper end of the lever 17, causing the lower endof said lever to engage with the flange 14 and withdraw the movableengaging part against the action of the controlling-spring.

In addition to the key-operated unlocking device I provide a combinationunlocking device. This consists of three hubs d cf, operated by spindlesg, h, and j, accessible from the outside of the door. On the hub d is adisk 52, having a notch 53, at the bottom of which is a section ofelectrical insulating material 54. On the hub e is a disk 55, having anotch 56, with a section of insulating material 57 at the bottomthereof. On the hub 0 fthere is a disk 58, having a notch 59, with asection of insulating material 60 fixed in the bottom thereof. The hub23 carries a second cam 25. The bolt 27 is provided with ahead 26, ofcurved contact outline, substantially as shown. The bolt 27 is providedwith a groove 30, which slides over or upon the fixed pins 2.). Thispermits a vertical reciprocating movement. The lower terminalof bolt 27is formed as shown at 28 and designed to enter notch 59 in disk 58.There isa lever 70, pivoted at 71, having a retracting-spring 72. Fixedupon this lever is a mechanical and electrical contact 73, insulatedfrom the lever by a bushing 74. The point is designed to enter notch 53in disk 52. is a lever, pivoted at 81, having a retracting-spring 82. Amechanical and electrical contact 83 is fixed to the lever 80, but isinsulated therefrom by the insulatingbushing 84. The terminal 85 oflever 80 is designed to enter the notch 56 in the disk 55. The free endsof the levers 70 and 80 engage the under side of the head 26 of thesliding piece 27. IVhen the parts are in the position shown, thecombination is in the unlocking position, and upon turning the spindlehaving the knob 50 on the outside of the door the cam 25 will rotatefrom right to left and riding on the curved surface of the part 26 willdepress the sliding piece 27, thus causing the projections 28, 75, and85 to enter, respectively, the notches 59, 53, and 56 and to rest uponthe electrical insulating material in the bottom of said notches. Thecam usual push-button 93.

push-button the alarm is sounded in the usual manner. I also provide acircuit-closer operated by the combination unlocking apparatus wheneverknob 50 and hub 23 are turned while the combination unlocking apparatusis at any but the unlocking point. For this purpose I provide aninsulated contact I) in the face-plate of the look. This is set in aninsulating-bushing t and registers with an insulated spring-contact c inthe striker-plate of the door. A branch circuit 94 is connected with thecontact 0, thence to the insulated contact I), to the insulated wire 95,and to the three parallel branches, branch 96 connected to point 73,branch 97 connected to point 28, and branch 98 connected to point 83.The opposite terminal of the circuit 91 is connected by branch 99 to thestriker-plate 5, thence to the lock-case 3, either by direct contact orthrough the bolt-head S. It results from this arrangement that if eitherdisk 52, 55, or 58 is not in position to present the section of,insulation 54, 56, or 60 to the contact-points 75, 85, or 28 the circuitwill be closed through one of the branches 96, 97, or 98 whenever theknob 50 is turned, and the movement of the cam 25 brings the describedcontact-points or any one of them into engagement with the uninsulatedperiphery of a disk.

It remains to describe the means for arbitrarily setting and shiftingthe combination. I call the position shown and described theunison-point of the disks. Upon each hub d c f I place a scalloped diskm n 0, respectively. Each disk 52 55 58 is provided with a fixed pin100, and each of the disks has a series of holes 101. The scallopeddisks m n 0 have a section of their periphery left smooth and unbroken.There is a detainingspring q, engaging the depression in each disk. Byfixing the disk m to the disk 52 in such a manner that the notch 53 isunder the contact-point 75 when the detaining-spring q is in the firstperipheral depression, and by fixing the disk 0 so that the notch 59 isunder the contact-point 28 when the spring (1 is in its secondperipheral depression and by fixing the disk m so that the notch 56 isunder the contact 85 when the spring (1 is in the third peripheraldepression the unlockingknob 50 can be turned and the movable engagingpart withdrawn without sounding an alarm, the combination being set withthe spindles g, and h in the first, second, and third notches orpositions, respectively. This position can be attained by turning thespindles till each disk presents a smooth and unbroken section of itsperiphery to its springq and then turning the first spindle one notch,the second spindle two notches, and the third spindle three notches,representing the combination 123. This combination may be changed oraltered at pleasure by changing the location of any scalloped disk on,n, or 0 with respect to the underlying notched disk 52, 55, or 58. Ifthe knob 50 on the outside of IIO the door should be turned and thecontactpoints depressed while any one of the notches 53, 56, or 59 isout of position, the circuit would be closed and the alarm sounded, thuscalling-attention to the attempt to enter.

What I claim, and desire to secure by Letters Patent, is

1. In a lock the combination of a movable engaging part, a lockingmember therefor, acontrolling device for said locking member with aplurality of separate and independent means for operating saidcontrolling device, the first consisting of a key and a pivoted 1ever inposition to withdraw said engaging part, the second consisting of apivoted lever, a blocking device therefor and two or more pivotedlevers, a tooth or projection on each of said levers, rotating notcheddisks, one for each-of said levers, and means for rotating said disksfrom outside the door.

2. In a lock the combination of a movable engaging part, means forcontrolling said engaging part, and two separate devices for operatingsaid controlling means, the first consisting of a pivoted lever towithdraw said engaging part, a key-cylinder and a key, the secondconsisting of a pivoted lover, a knob and spindle for operatingsaidlever, a reciprocating blocking device for said lever, two or morepivoted levers, a tooth or projection on each lever, rotating notcheddisks, one for each lever, indicating-disks adjustably con nected tosaid notched disks respectively,and means for moving said disks step bystep in either direction.

3. In a lock the combination ofa movable engaging part, a locking membertherefor, a

controlling devicefor said locking member with aplurality of separateand independent means foroperating said controlling device, the firstconsisting of a key, a key-cylinder and a pivoted lever in position todirectly withdraw said engaging part, the second consisting of a pivotedlever, a reciprocating blocking device therefor, two ormore pivotedlevers, a tooth or projection on each lever; rotating disks, one foreach lever, a single notch in each disk, scalloped indicatingdisksadjustably connected one to each notched disk, a sp'ring-detent for eachscalloped disk and means for moving said disk step by step in eitherdirection.

4. In a lock the combination of a movable engaging part, a lockingmember therefor, a controlling device for said locking member and aplurality of separate and independent devices for operating saidcontrolling device, the first consisting of a key and pivoted lever inposition to directly withdraw said'engaging part, the second consistingof a pivoted lever, a blocking device therefor, two or more supplementalpivoted levers, an insulated tooth or projection on each of saidlast-namedlevers, rotating disks, one for each such lever, each diskhaving an insulating-notch, means for rotating said disks and anelectricalarm circuit including said disks and insulated teeth orprojections in multiplearc branches.

5. In a lock the combination of a movable engaging part, means forcontrolling said engaging part, two separate devices for operating saidcontrolling means, the firstconsisting of a pivoted lever to directlywithdraw said engaging part, a key and key-cylinder, the secondconsisting'of a pivoted lever, a knob and spindle for operating saidlover, a reciprocating cam to block the: movement of said lever, a toothor projection fixed to said cam, a rotating disk having a single notchinits periphery to receive said projection, a scalloped disk adjustablyconnected to said notched disk, a detaining-pawl for'said disk and meansfor moving said disks step by step in either direction.

6. In a lock the combination of a movable engaging part, a pivoted leverto withdraw said engagingpart and a key-cylinder and key to operate saidlever; a second pivoted lever, means for operating said lever fromoutside the door, means for blocking saidlea engaging part, suitablemeans for controlling and operating said engaging part, and two separatedevices for operating said controlling means, the first including asuitable key, the second consisting of two or more rotating disks, aperipheral notch in each disk, a reciprocating contact-point for eachdisk in po-' sition to enter its peripheral notch, a device forinsulating the contact-point when in tengagement with said notch, meansforadvanc-v ing each disk stepby step consistingof'a scallopedsuperposed disk for each notched disk adjustably fixed thereto, asuitable detaining-springtherefor and a knob or fingerpiece for eachdisk accessiblefrom outside the door, an electric alarm, a circuittherefor, and a series of parallel branch circuits each such branchincluding a disk and contactpoint.

HENRY GUY CARLETON. Witnesses:

I J. N. EWAN, HENRY R. PEAoooK.

